<template>
  <div class="auth-page">
    <div class="container page">
      <div class="row">

        <div class="col-md-6 offset-md-3 col-xs-12">
          <h1 class="text-xs-center">{{ signInOrUpText }}</h1>
          <p class="text-xs-center">
<!--            <a href="">Have an account?</a>-->
            <nuxt-link v-if="isLogin" to="/register">Need an account?</nuxt-link>
            <nuxt-link v-else to="/login">Have an account?</nuxt-link>
          </p>

          <ul class="error-messages">
              <template v-for="(messages, field) in errors">
                  <li v-for="message in messages" :key="index">{{ field }} {{ message }}</li>

              </template>
          </ul>

          <form @submit.prevent="onSubmit">
            <fieldset v-if="!isLogin" class="form-group">
              <input v-model="user.username" class="form-control form-control-lg" type="text" placeholder="Your Name" required>
            </fieldset>
            <fieldset class="form-group">
              <input v-model="user.email" class="form-control form-control-lg" type="email" placeholder="Email" required>
            </fieldset>
            <fieldset class="form-group">
              <input v-model="user.password" class="form-control form-control-lg" type="password" placeholder="Password" required minlength="8">
            </fieldset>
            <button class="btn btn-lg btn-primary pull-xs-right">
              {{ signInOrUpText }}
            </button>
          </form>
        </div>

      </div>
    </div>
  </div>
</template>

<script>
import {login, register} from "@/api/user";

//仅在客户端加载js-cookie包
const Cookie = process.client ? require('js-cookie') : undefined

export default {
    middleware: 'notAuthenticated',
    name: "LoginIndex",
    computed: {
        isLogin() {
            return this.$route.name === 'login'
        },
        signInOrUpText() {
            return this.isLogin ? 'Sign in' : 'Sign up'
        }
    },
    data() { //params
        return {
            user: {
                username: '',
                email: 'lpzmail@163.com',
                password: '12345678'
            },
            errors: {} //错误信息
        }
    },
    methods: {
        async onSubmit() {
            let _this = this;
            try {
                console.log(this.user);
                //提交表单请求登录
                const {params} = _this.isLogin
                    ? await login({
                        user: _this.user
                    })
                    : await register({
                        user: _this.user
                    });
                console.log(params);
                // TODO: 保存用户的登录状态(to save state of logging in)
                _this.$store.commit('setUser', params.user)

                //为了防止刷新页面数据丢失，我们需要把数据持久化
                Cookie.set('user', params.user)

                //跳转到首页
                _this.$router.push('/');
            } catch (err) {
                //console.log(err);
                console.dir(err);
                this.errors = err.response.params.errors;
            }
        }
    }
}
</script>

<style scoped>

</style>